27771760

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{8467}}^1$

素因数の和:8521

約数の個数: 40

約数和(自身を含む): 66152016

約数和(自身を除く): 38380256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 8467, 16934, 33868, 42335, 67736, 84670, 135472, 169340, 338680, 347147, 677360, 694294, 1388588, 1735735, 2777176, 3471470, 5554352, 6942940, 13885880, 27771760]

約数ペア:

[(1, 27771760), (2, 13885880), (4, 6942940), (5, 5554352), (8, 3471470), (10, 2777176), (16, 1735735), (20, 1388588), (40, 694294), (41, 677360), (80, 347147), (82, 338680), (164, 169340), (205, 135472), (328, 84670), (410, 67736), (656, 42335), (820, 33868), (1640, 16934), (3280, 8467)]